TR 250/TR5/TR6 Head differances

[Kenneth Brown <kbrown@trmx3.dot.ca.gov>]

I was doing a little research on the head differences on the TR 250, TR 5, and
TR 6 and wondering if anyone could shed more light on the subject. I'm
particularly interested in the different in the US market cars as compared to
those of the UK and those exported to other parts of the world.

Thanks in advance,
Ken
TR 250 in California